author 234 224 751 328 figure 112 1083 441 1261 abstract 84 371 902 540 title 203 146 782 203 caption 84 1277 480 1318 equation 513 1109 901 1221 text 506 566 901 1101 text 84 564 480 1060 text 506 1222 900 1319